iOS and Android apps from one React Native codebase, with native modules where the app needs them.
Stack we work in
Figures as of Oct 2026
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We build cross-platform iOS and Android apps with React Native and TypeScript, using Expo or the bare workflow depending on how much native code your app needs.
When a feature needs platform access, our developers write native modules in Swift and Kotlin. We also help web React teams move to mobile, tune slow apps, handle App Store and Google Play releases, and add AI features such as smart search, recommendations or in-app assistants.
Separate iOS and Android teams mean double the work for every feature, and the two apps drift apart over time.
Your developers know React, but native builds, device features and store releases are new to them.
Long startup times, janky lists and crashes on some devices are hurting reviews and retention.
Outdated libraries block new OS features and store requirements, and every upgrade attempt breaks something.
The app needs a hardware feature, payment SDK or background task that needs custom native code.
Outcomes
A structured React Native project with navigation, state management, environment configs, and unit and end-to-end tests.
Reusable UI components built from your Figma designs, used across every screen on iOS and Android.
Swift and Kotlin modules for SDKs, hardware or platform features that are not available as ready-made libraries.
Automated builds with Fastlane or EAS for TestFlight and Google Play testing tracks, then store submission.
APIs and a web admin built with Node.js and Firebase, GraphQL or REST, depending on your needs.
Sentry crash reporting, documentation and a walkthrough of the codebase for your team.
Marketplaces, booking, social and content apps that need to reach iOS and Android users at the same time.
Mobile apps for an existing React web product, sharing types, API clients and business logic.
Apps for staff on the move, with offline data, camera capture, location and sync when back online.
Tracking, reminders and wearable or device integrations through native modules.
Product catalogs, checkout, payments, push offers and loyalty programs.
Smart search, recommendations, chat assistants or image recognition built with our data science team.
One codebase and one team for iOS and Android.
Built with
Built with
Built with
Built with
Built with
Since 2018 we have delivered 680+ projects for 310+ clients, and 98% of clients keep working with us.
We build in TypeScript, use Expo where it fits, and write Swift or Kotlin modules when a feature needs native code.
We can set up the project and patterns so your existing React developers can work on the mobile app with us.
We profile slow or crashing apps and upgrade old React Native versions to the New Architecture in planned steps.
After discovery you get a written quote, and a fixed-price MVP package is available for a first release.
Featured case study
A secure, HIPAA-compliant platform that streamlines employee health evaluations, compliance workflows and clearance certification for employees, employers, patients and providers.
Read the case study
We agree the users, core flows and platform features of the first release, and check which features need native code.
You receive Prioritized feature list and release scope
We choose Expo or the bare workflow, state management, navigation and backend, and plan any native modules.
You receive Technical plan and milestone schedule
Wireframes and a clickable prototype in Figma validate key flows, then high-fidelity screens follow iOS and Android conventions.
You receive Interactive prototype and UI kit
Short iterations covering the app, native modules, backend and integrations, with test builds on real devices and regular demos.
You receive Working TestFlight and Google Play test builds every iteration
Unit tests with Jest, end-to-end tests with Detox, device testing, then App Store and Google Play submission.
You receive Apps live on the App Store and Google Play
Crash monitoring, React Native upgrades, OS updates, performance work and new features.
You receive Maintenance plan
Tech stack
Databases
Mobile
Frontend
Backend and APIs
Languages
Testing and quality
Other tools
Already have an app?
We take over apps another team built: a code and performance audit, then upgrades, fixes, ongoing maintenance and AI features added to what already works.
Starting out?
Starter, Launch and Pro packages from $2,999, live in 5 to 30 days, with your code and IP owned by you.
Cost depends on the number of screens and user roles, the native features and SDKs you need, the backend and admin panel, integrations, and how much design work is involved. A focused first release costs far less than a full product. After discovery we send a quote for the agreed scope, and for a first release our fixed-price MVP packages are an option. As a guide, most apps cost between $5,000 and $50,000 (USD), and larger platforms more.
It depends on scope. A focused first release often takes a few weeks to a few months, while larger apps with many native integrations take longer. We agree milestones up front and share test builds throughout, so you see progress on real devices.
Both build iOS and Android apps from one codebase. React Native suits teams that already use React and TypeScript on the web, because they can share code, types and skills. Flutter suits apps that need a highly custom interface across mobile, web and desktop. We build with both and recommend one after looking at your team, features and roadmap.
We use Expo when it covers the app's native needs, because it speeds up builds, updates and releases. We use the bare workflow, or Expo with custom native code, when the app needs SDKs or platform features that require full native control. We explain the trade-off before we start.
Yes. React Native uses the same React concepts and TypeScript, so web developers can contribute quickly. We set up shared packages for types, API clients and business logic, review their code, and handle the native and store-release parts until your team is comfortable.
Yes. We profile startup time, rendering, memory and network calls, then fix the biggest problems first: slow lists, unnecessary re-renders, heavy bundles or outdated architecture. Where it helps, we upgrade to a current React Native version with Hermes and the New Architecture.
We store tokens and sensitive data in the device keychain or keystore, use encrypted connections to your APIs, and request only the permissions the app needs. We design data handling to meet GDPR and the local rules that apply to your users, and sign an NDA before we see your product details.
You own the code and IP we build for you. We publish under your own App Store Connect and Google Play Console accounts, and hand over the repositories, build setup and documentation.
Yes. We can join your team as extra React Native or native developers, take over a specific part of the app such as native modules or releases, or lead the build while your team reviews and learns the codebase.
We offer ongoing maintenance: crash monitoring, bug fixes, React Native and dependency upgrades, updates for new iOS and Android versions, store compliance changes and new features. You can choose a monthly plan or pay for work as it comes up.
We start with a short discovery call under NDA if you need one. Send us your idea, any designs or documents, and the systems the work must connect to. We then share a written scope, timeline and estimate before any build work starts.
Tell us about your app, your team and your timeline. We will suggest the right workflow and a plan for the first release.
